package com.atguigu.gulimall.gulimallseckill.scheduled;

import com.atguigu.gulimall.gulimallseckill.service.SeckillService;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

/**
 * 秒杀商品的定时上架
 * 每天晚上3点,上架最近三天需要秒杀的商品
 *          00:00:00   -   23:59:59
 */
@Slf4j
@Service
public class SeckillSkuScheduled {
    @Autowired
    private RedissonClient redissonClient;
    @Autowired
    private SeckillService seckillService;
    private final String upload_lock = "seckill:upload:lock";
    //TODO 幂等性处理
    @Scheduled(cron = "*/5 * * * * ?")
    public void uploadSeckillSkuLates3Days(){
        //1、重复上架无需处理
        log.info("上架秒杀商品的信息,,,");
        //分布式锁
        RLock lock = redissonClient.getLock(upload_lock);
        lock.lock(10, TimeUnit.SECONDS);
        try{
            seckillService.uploadSeckillSkuLates3Days();
        }finally {
            lock.unlock();
        }
    }
}
